What the evidence answers

A reading of reviewed official documentation for Mailgun and SMTP2GO. It is not a hands-on test, a ranking or a recommendation of one product.

Price

  • Mailgun From $15/mo
    • Free: no subscription charge
    • Basic: $15.00 monthly
    • Foundation: $35.00 monthly
    • Scale: $90.00 monthly
    • Enterprise: Vendor quotation required
  • SMTP2GO From $15/mo
    • Free: no subscription charge
    • Starter: $15.00 monthly
    • Starter: $150.00 annual ($12.50/mo equivalent)
    • Professional: $75.00 monthly
    • Professional: $750.00 annual ($62.50/mo equivalent)
    • Premier: Vendor quotation required

Both list prices on the same basis. Compare what each plan includes; the lower amount alone does not make the better choice.

Documented for both

Sending volume
Mailgun Free: 100 emails per dayBasic: 10,000 emails per monthFoundation: 50,000 emails per monthScale: 100,000 emails per month
SMTP2GO Free: 1,000 emails per monthStarter: 10,000 emails per monthProfessional: 100,000 emails per monthPremier: More than 3,000,000 emails a month
Sender domains
Mailgun Free: 1 custom sending domainBasic: 1 custom sending domainFoundation: 1,000 custom sending domainsScale: 1,000 custom sending domains
SMTP2GO SPF and DKIM are set up automatically for your sending domains.
Log retention
Mailgun Free: 1 day of logsBasic: 1 day of logsFoundation: 5 days of logsScale: 30 days of logs
SMTP2GO Free: 5 days of email reportingStarter: 30 days of email reportingProfessional: 30 days of email reporting
Dedicated IP
Mailgun Extra dedicated IPs cost USD 59 per IP a month.Foundation: Available from the 50,000-email tier; one IP included from 100,000 emails a monthScale: One dedicated IP included, plus dedicated IP pools
SMTP2GO Professional: Dedicated IP address included
Support
Mailgun Ticket, chat and phone support depend on the plan.Free: Ticket supportScale: Live phone and chat support
SMTP2GO Starter: ticket, chat and phone support.Free: Ticket support; toll-free phone and live chat for the first 14 days onlyProfessional: Ticket, chat and phone support
Overage charges
Mailgun Extra emails are billed at the start of each month for the previous month, together with the plan fee.
SMTP2GO Free: Extra emails are not permitted on Free.

Limits to check

  • Mailgun Free and Basic allow 1 custom sending domain and 1 day of logs; Foundation raises this to 1,000 domains and 5 days, and Scale keeps 30 days.
  • SMTP2GO The free plan is limited to 200 emails a day and does not allow extra emails.

Not verified yet

Every compared requirement has evidence for at least one.

Documented for one product only, shown in the table below: Mailgun: webhooks and events.

Not verified means our reviewed sources do not establish it. It does not mean a product lacks the capability or that it costs nothing.

Next steps

  • Ask SMTP2GO about webhooks and events; our sources do not establish it yet.
Documented scope and limits; unverified dimensions remain unknown.
RequirementMailgunSMTP2GO
Pricing
Who it is for
Sends application email through an HTTP API or an SMTP endpoint.

Verified Oct 11, 2026 · Mailgun: official product and plan documentation

Email delivery for transactional email from apps, everyday email from Outlook and marketing email with an unsubscribe link.

Verified Oct 11, 2026 · SMTP2GO homepage

Coverage limits
Free and Basic allow 1 custom sending domain and 1 day of logs; Foundation raises this to 1,000 domains and 5 days, and Scale keeps 30 days.

Verified Oct 11, 2026 · Mailgun: official product and plan documentation

The free plan is limited to 200 emails a day and does not allow extra emails.

Verified Oct 11, 2026 · SMTP2GO pricing, loaded monthly plan cards

Sending volume
  • Free 100 emails per day
  • Basic 10,000 emails per month
  • Foundation 50,000 emails per month
  • Scale 100,000 emails per month
  • Free 1,000 emails per month
  • Starter 10,000 emails per month
  • Professional 100,000 emails per month
  • Premier More than 3,000,000 emails a month
Sender domains
  • Free 1 custom sending domain
  • Basic 1 custom sending domain
  • Foundation 1,000 custom sending domains
  • Scale 1,000 custom sending domains
SPF and DKIM are set up automatically for your sending domains.

Verified Oct 11, 2026 · SMTP2GO homepage

Log retention
  • Free 1 day of logs
  • Basic 1 day of logs
  • Foundation 5 days of logs
  • Scale 30 days of logs
  • Free 5 days of email reporting
  • Starter 30 days of email reporting
  • Professional 30 days of email reporting
Webhooks and events
Tracking, analytics and webhooks are listed from the Free plan up.

Basic, Foundation and Scale cards list them too.

Verified Oct 11, 2026 · Mailgun: official product and plan documentation

Not verified
Dedicated IP
Extra dedicated IPs cost USD 59 per IP a month.

Verified Oct 11, 2026 · Mailgun: official product and plan documentation

  • Foundation Available from the 50,000-email tier; one IP included from 100,000 emails a month
  • Scale One dedicated IP included, plus dedicated IP pools
  • Professional Dedicated IP address included
Support
Ticket, chat and phone support depend on the plan.

Verified Oct 11, 2026 · Mailgun: official product and plan documentation

  • Free Ticket support
  • Scale Live phone and chat support
Starter: ticket, chat and phone support.

Verified Oct 11, 2026 · SMTP2GO: official product and plan documentation

  • Free Ticket support; toll-free phone and live chat for the first 14 days only
  • Professional Ticket, chat and phone support
Overage charges
Extra emails are billed at the start of each month for the previous month, together with the plan fee.

The first month is prorated.

Verified Oct 11, 2026 · Mailgun: official product and plan documentation

  • Free Extra emails are not permitted on Free.
Coverage note

Starting allowance.

At the default volume shown.

Choose two or three products.